Improved cutting-nippers



@geiten tetes @Eaten-t @fitta Letters Potent No. 80,031, elated July'14, 1868;

-f IMPROVE) CUTTING-Nurses.

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To ALL WHOM 1T MM'CONGERN;

Be` it known that I, NATHA TOMPSON, a. citizen of the United States, atpresent residing in the city of i- Brooklyn, in the State ofNew-Yo'rk,have invented a new and-useful Cutting-Nippersjand that the following,taken nconnection with the drawings, isp-a fall, clear, and exactdescription thereof. l

In the drawingsf-v Figure 1 is a side elevation of'a nippers madeaccording to therprin'ciples of my invention, the cutting- -jaws ofthenippers being' nearly shut.= v

e Figure-2 is a side elevation with the' jaws open.

Figure is a front'elevfationof one jaw and handle, oir-'side olfthe-nippcrs, showing 'parts of 4the other side,

in section.

, Figure 4 is a. t'pp view' of thcnippers, with portion of thehandlcsreuioved.-

I 'have been led vtothis invention by the' demand for a cutting-nippersof greatpowe'r, and yet contained in a. small'rcoinpuss, andwithout'unnec'essary complication, and my invention isl based upon theidea of' cuttingedges, as close as possible to the pivot of thenippers,'in connection with handles whose ends or portions thatare-grasped are as far as possible from the same pivot, thus securingthe greatest amount of leverage .in any givenlength of nippers. f p ,i AIn the drawings, the cutting-edges of 'thenipper-s are shown'at a a.:*They may be forged` upon pieces of steel, which are dove-tailed into orotherwise secured to the sustainingjws, as shown in-i'gs. v1 and 2, orthey may be welded to thel'jaws, or the jaws handles, and allmay heforged of one piece of steehgencept the. sup- Vports hereafterdescribed.' These lcutting-e'des are as close asA possibleftothe knuckleo'r hinge b, or they'may be brought'eveu closei to the pivot by dividingthem into 4two ledges for each janv, andpermitting'thelthucklestovproject up between the two edges.. lThere maybe one or moreknuckles'to each jaw, but I have found one, as-'shown in the-drawings,to be suiiicijjnt, 'and the knucvklesjand jaws arerrsecured together byand turn jupon The close proximity of tliejans to the `pivot preventsfany-cutting of \vire over the knuckles, aud'only those parts ot" thecutting-edges which areroutsidc of theiinucklesare practicallyeffective'. By outside,'-I mean the parts .between c: and y, iig. 4; Asthe distance 'from the cutting-edges to the pivotl is so small, and-thedis tance from the same pivot tol the graspof the handles, or thoseparte thereof embraced by the hand, is sogreat, the cutting' porter of`the edges is remarkable, and, as it is necessary to cut on one side ofthe centre of the edges, there is, Wh'enthe nippors are cutting, Aastron-tendency to twist the knuckles apart, or tear the knucklesV of thesustaining-jzri'sor otherwise render thehippers unserviceable; in fact,anippe'rs propontionedas mine,- wonldrbealmost useless, unless thisdilcultynvere obviated.v l -I I have therefore applied to the jaws twosupporting-pieces d d, one toe'ach jaw, extending from Athe handle tothe jaw, audI prefer to -ri'vet or screwt-hese sil'pports tothe handles,sometimes abutting their ends 4against v a ledge or Ybracket projectingfrom the handles, and at others depending nponA the rivets or screwsalone. I preferto'attach the supports to the jaws by letting'theminto,slotsor recesses (see dotted lines z) slotted out in the jaws, and, ifnecessary, rivet them fast. I findby practice that these supports remedythe 'dilculty, andenable nie to cut any wire within the power ofthe'nippers without-twisting or fracturing them. The jawsA are thereforeconnected Ito theihandles by a double connection, one pax-tof eachconnection being'embraced by theftwo parts appertaning'to theotherjaw,'(see, specially, iig. 4

Uponthe same principles herein described, other forms'of Vnippersmay hemade, and I intend sometimes to make two sets oi`` knuckles and twopivots, one set at euch end ofthe cutting-edges, and with a support orconnection from each handle to each knuckle. Under this constructionthere will be, 'as before, two connections from each handie to each-jaw,but in this case the cutting-edges will be'ine'ectiveatthe two endsthereof, and' effective at andabout the centre only. l v

This form is lnot-as good. as that described, except when the nippersare to'be-used for cutting shortfle'ngths efheavy wire. l

.I claim constructing cutting-flippers, so that the cutting-edgesthereof shall be s'c'lo'se as possible to the knuckle Wheh surrounds thepivot on which the jaws' turn, or shall be even closer to the pivot,with theknuekle pt ojecting between the divided edges, as described, andso also that there sha-ll bea. double connection between thejaws andthe-handles, onejpert of each connecton being embraced by. the parts oftheother, in the manner substntially as herein described.

NATHAN THOMPSON. [1.. s.] Witnesses I' EZRA B. TUTTLE, ISAAC-z S.WATERS.

